1- Search online using specific keywords such as "Executive CV writing service near me", " professional executive CV writing service near me " or "top-rated executive CV writers near me". This will bring up a list of local companies offering CV services.

2- Visit the companies website and read the reviews testimonials. 

3- Check out companies social activity on Facebook, Twitter, and LinkedIn profiles to know more about their expertise and experience.  

4- Request a quote from the service provider and compare the cost with the market, Get in touch with their support team to address your queries. 

5- Discuss the turnaround time and the portfolio with post-interview follow-up services, a hiring guarantee, and a money-back policy included. 

6- Evaluate the overall experience and trustworthiness of the company and make a decision.